The nationwide salmonella outbreak has sickened hundreds of people in 43 states and killed at least six.
"The actions we are taking today are in keeping with our more than 100-year commitment to providing consumers with safe, high-quality products," said David Mackay, Kellogg's president and CEO. "We apologize for this unfortunate situation."
The recall includes Austin and Keebler branded Peanut Butter Sandwich Crackers, as well as some snack-size packs of Famous Amos Peanut Butter Cookies and Keebler Soft Batch Homestyle Peanut Butter Cookies.
Sandra Williams, a compliance officer with the Food and Drug Administration in Detroit, advised consumers not to eat the products and to contact a doctor if they have any symptoms. She also urged careful disposal of the tainted products to avoid the risk of homeless people finding and eating them.
"Kellogg reacted promptly to this potential public health risk after receiving notification of the potential problem from their supplier," Williams said.
On Capitol Hill, the House Energy and Commerce Committee requested records as it opened its own inquiry.
Although the investigation has gone into high gear, FDA officials say much of their information remains sketchy. And new cases are still being reported.
"This is a very active investigation, but we don't yet have the data to provide consumers with specifics about what brands or products they should avoid," said Stephen Sundlof, director of the FDA's food safety center. Although salmonella bacteria has been found at the Georgia plant, for example, more tests are needed to see if it matches the strain that has made people sick.
The investigation includes not just peanut butter, but baked goods and other products that contain peanuts and are sold directly to consumers. Health officials say as many as one-third of the people who got sick did not recall eating peanut butter.
"The focus is on peanut butter and a wide array of products that might have peanut butter in them," said Dr. Robert Tauxe, director of the foodborne illness division at the Centers for Disease Control and Prevention.
Officials said they are focusing on peanut paste, as well as peanut butter, produced at a Blakely, Ga., facility owned by Peanut Corp. of America. The concern about peanut paste is significant because it can be used in dozens of products, from baked goods to cooking sauces.
Federal officials said they are focusing on 32 of the 85 companies that Peanut Corp. supplies, because of the time period in which they received shipments of peanut butter or paste. The companies are being urged to test their products, or pull them from the shelves as Kellogg did.
The government is also scrutinizing a grower, raising the possibility that contamination could have occurred before peanuts reached the processing plant, which passed its last inspection by the Georgia agriculture this summer.